Hot-water heating apparatus.



J. W. REVY.

HOT WATER HEATiNG AYPARATUS.

APmcmoN mo MM16,1914- 1,234,694. P mma July 24,191?

Y i y z .ii 5 i JULIAN WILLIAM Envy, or LoNnoN; ENGLAND.

HOT-WATER HEATING APPARATUS.

specification of Letters ratent. Patented July 24,1917.

Application filed May 16, 1914. Serial No. 838,973. I

To all whom it may concern:

Be it known that I, JULIAN WILLIAM REVY, of London, England, have invented certain new and useful Improvements in and Connected with Hot-Water Heating Apparatus, of which the following is a specification.

This invention relates to improvements connected with hot water heating apparatus and more specifically to systems of heating by means of'radiators, and the like. 1

In these systems it is usual to either employ steam or hot water from some central source of supply for heating the radiator but both these methods are open to objection. If steam is employed the heating is necessarily of too high a temperature and the radiator is subjected to high pressure. Moreover the heating is of too dry a nature and absorbs too much moisture from the atmosphere with the result that the atmosphereof the room or other situation is both unpleasant and unhealthy.

If hot water is utilized this objection is obviated but a further disadvantage arises in that hot water systems as hitherto proposed are expensive inthat piping of a comparatively large size is necessary and moreover means have to be provided for insurin the circulation of the water.

In order to obtain the advantages of both systems and to eliminate their disadvantages it has been proposed to provide a vessel adapted to contain hot water which is heated by the admission of steam through a submerged nozzle.

The object of my present invention is to provide means for adapting this system to radiators of the ordinary multitubular pattern which is usually built up of a number of units having outlets at their top and bot tom ends and connected together by means of internal sleeves or their equivalent. To this end I supply a steam nozzle preferably of the type described in my prior British specification No. 22089 of 1907 and mount this nozzle upon a suitable preferably screw plug adapted to fit into one of the holes usually occupied by a closing plug or pipe connection when the radiator is built up in the ordinary manner.

I may also employ a thermostatic control valve for automatically maintaining the radiator at some predetermined temperature and this thermostatic valve is also mounted upon or associated with the screw plug aforesaid. v

In the accompanying drawings Figure 1 is an elevational view partly in section-v of a radiator constructed and arranged in 210* cordance with my invention. 7 r Fig. 2 is a view to an enlarged scale of the thermostatic valve I employ, and Fig. 3 is a sectional view to an; enlarged scale of the boiling nozzle.

Referring to these drawings A designates the radiator as a whole constructed in the usual manner and made up of the tubular units 1 connected together by the screw connections 2 so as to leave the openings 3' closed at one end by a screw plug 4. and at the other end by a plug 5 carrying certain valves and fittings incidental to my invention as willhereafter appear. The numeral 6 designates a steam pipe which is led from any suitable boiler or steam supply in a manner similar to that employed with steam heated radiator systems.

v The numeral 7 designates a cook or valve which is employed for-turning the steam on or 03. From this control valve 7 the steam pipe leads to the screw plug 5 from which another pipe extends into the interior of the radiator and terminates in a boiling nozzle, which it will be seen from Fig. 3 comprises an outer perforated shell S gan inner perforated tube 8 into which the steam entersjfrom the steam supply pipe and v the space between the tube 8 and the shell 8 1 is packed with lead shot 30 or its equivalent.

The numeral '9 designates a thermostatic valve preferably of the type illustrated in Fig. 2. This'valve-is of a cylindrical shape and one end of the apparatus is surrounded by a cap 10, which prevents any leakage which may possibly occur from the fluid getting past the threads of the screw at-the top of the apparatus and the valve casing 11. The valve 12 is composed of four wings or prongs 13 disposed equidistantly, which not.

only form guides but allow of the fluid or steam to get into the interior of the apparatus. The casing 11 surrounding the valve is also formed with wings or prongs 14:, which also serve as a guide for the rise and fall of the said valve 12 and form spaces or passages for the flow of steam which has entered the apparatus by the steam inlet. 15

which coming into contact with the seat conis the seat for the valve 12 the shoulders of stitute a check or bar to the inflow of steam. 16 and 17 are the steam ports of the outlet or discharge port. 18 and 19 are the pistons. 20 is a weak spring interposed between the top of piston 18, and below the valve 12 to support the valve and carry it toward its seat when expansion takes place in the tube 21. 22 is a strong spring mounted between the inner end of casing 11 and the collar 23 screwed on to the piston 18 aforesaid, designed to assist in opening valve 12 when any contraction takes place in the tube or passage. 24 is an expansive material inserted in the tube 21. At or near the up per part of this tube 21 is inserted the packing piece 25 having a conical extension 26 formed on its underside. This packing piece 25 is contained in the hollow formed by the tubular section 27 and is held in position by a cap or cover 28. A11 excess of expansive material composed of gutta percha, which has found its way between the lower piston 19 and the sides of the tube 21 is collected in the space 29 beneath the conical extension 26 of the packing piece 25 which prevents it from getting into the interior of the apparatus.

The mode of action of this valve is as follows:

The steam coming in by the inlet will pass through valve 12 and out to the boiling nozzle, heating up the water supply. As the water becomes heated, the material 24: inside the tube 21 expands, and in so doing closes the valve 12 by means of the pistons 18, 19 rising. A space is provided in the body of valve 12 to allow any excessive expansion which takes place after the valve is closed. If the temperature in the radiator be reduced, the material 24 in the tube 21 will contract, thus allowing the valve 12 to open and admit steam as before. When the steam supply is shut off, the strong spring 22 will keep the valve 12 back from itsseat.

If it is desired to adjust the valve so that less heat will be furnished, remove the cap 10 and then screw down the valve casing 11 by means of its square head, thus bringing the valve seat nearer to the valve and consequently shutting ofi the supply of steam sooner. Should, however, more heat be required, withdraw the valve casing 11 by its square head thus carrying the valve seat away from the valve and consequently allowing the supply of steam to enter the radiator for a longer time. I

In operation all the radiators in the building are connected to the steam supply in the manner indicated and they are each independently supplied with water when the system is initially installed. The valve 9 is set to the desired temperaturesay for example 17 0 F. and the steam is turned on by the operation of the control valve 7 and this steam heats the water in the radiator until this water reaches the desired tempera ture when the thermostatic valve operates to shut oflf the supply of steam until the tem perature of the water again falls. The employment of steam for heating the water will result in the addition of a small quantity of waterdue to the condensation of the steamto that with which the radiator was initially supplied and for this reason I propose to provide an overflow pipe 31 which may lead back to the boiler or to, a drain.

What I claim and desire to secure by Letters Patent is:

A hot water heating apparatus comprising in combination a radiator having an opening therein, a plug for insertion in said opening, a boiling nozzle carried by said plug, a steam supply pipe leading to said boiling nozzle and passing through said plug, said nozzle being in the prolongation of the axisof said plug but the pipe between said noz zle and said plug being connectedto the plug eccentrically, and a thermostatic valve mounted upon said plug in alinement with the axis thereof and adapted to control the supply of steam.

In testimony whereof I affix my signature in presence of two witnesses.

JULIAN WILLIAM REVY. Witnesses:

O. J. WoRTH, E. Roenns.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I1. 0. 

